776628223 has 8 divisors (see below), whose sum is σ = 898810880. Its totient is φ = 657254520.

The previous prime is 776628179. The next prime is 776628247. The reversal of 776628223 is 322826677.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 776628223 - 2²⁹ = 239757311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 776628223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (776628263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701643 + ... + 702748.

It is an arithmetic number, because the mean of its divisors is an integer number (112351360).

Almost surely, 2^776628223 is an apocalyptic number.

776628223 is a deficient number, since it is larger than the sum of its proper divisors (122182657).

776628223 is a wasteful number, since it uses less digits than its factorization.

776628223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404477.

The product of its digits is 338688, while the sum is 43.

The square root of 776628223 is about 27868.0502188438. The cubic root of 776628223 is about 919.1880923755.

The spelling of 776628223 in words is "seven hundred seventy-six million, six hundred twenty-eight thousand, two hundred twenty-three".